RU2014102576A - VIDEO ENCODING METHOD USING THE OFFSET REGULATIONS ACCORDING TO THE PIXEL CLASSIFICATION AND DEVICE FOR THIS, VIDEO DECODING METHOD AND DEVICE FOR THIS - Google Patents

VIDEO ENCODING METHOD USING THE OFFSET REGULATIONS ACCORDING TO THE PIXEL CLASSIFICATION AND DEVICE FOR THIS, VIDEO DECODING METHOD AND DEVICE FOR THIS Download PDF

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RU2014102576A
RU2014102576A RU2014102576/08A RU2014102576A RU2014102576A RU 2014102576 A RU2014102576 A RU 2014102576A RU 2014102576/08 A RU2014102576/08 A RU 2014102576/08A RU 2014102576 A RU2014102576 A RU 2014102576A RU 2014102576 A RU2014102576 A RU 2014102576A
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offset
pixel
edge
type
strip
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RU2581553C2 (en
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Елена АЛШИНА
Александр АЛШИН
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Самсунг Электроникс Ко., Лтд.
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Abstract

1. Способ декодирования видео, содержащий этапы, на которых:- синтаксически анализируют информацию объединения смещений, указывающую то, являются или нет параметры смещения текущего блока и, по меньшей мере, одного соседнего блока из числа блоков видео идентичными друг другу, из принимаемого потока битов;- восстанавливают тип смещения и значения смещения из числа параметров смещения текущего блока на основе информации объединения смещений;- определяют класс края или полосу пикселных значений восстановленного пиксела текущего блока на основе типа края или типа полосы пикселных значений текущего блока, указывающего тип смещения; и- определяют значение смещения, соответствующее классу края или полосе пикселных значений восстановленного пиксела, из значений смещения и регулируют пикселное значение восстановленного пиксела согласно значению смещения.2. Способ декодирования видео по п.1, в котором определение класса края или полосы пикселных значений восстановленного пиксела содержит этап, на котором:- в случае, если тип смещения текущего блока представляет собой тип края, сравнивают пикселные значения текущего восстановленного пиксела и соседних пикселов относительно текущего восстановленного пиксела, расположенного согласно типу края и размеру края, и определяют класс края, указывающий то, является или нет текущий восстановленный пиксел краевым пикселом,- при этом регулирование пикселного значения восстановленного пиксела согласно значению смещения содержит этап, на котором:- в случае, если значения смещения содержат значения смещения, соответствующие классам краев, выделяемым текущему типу смещени�1. A video decoding method, comprising the steps of: syntactically analyzing bias combining information indicating whether or not the bias parameters of the current block and at least one adjacent block of the video blocks are identical to each other from the received bit stream ; - restore the type of offset and the offset value from among the offset parameters of the current block based on the merge information of the offsets; - determine the edge class or strip of pixel values of the restored pixel of the current block on newer than the edge type or the type of strip of pixel values of the current block indicating the type of offset; and - determine the offset value corresponding to the edge class or strip of pixel values of the restored pixel from the offset values and adjust the pixel value of the restored pixel according to the offset value. 2. The video decoding method according to claim 1, wherein determining the edge class or strip of pixel values of the reconstructed pixel comprises the step of: - if the offset type of the current block is the edge type, the pixel values of the current reconstructed pixel and neighboring pixels are compared with respect to the current the restored pixel, located according to the type of edge and the size of the edge, and determine the class of the edge, indicating whether or not the current restored pixel is an edge pixel, while adjusting the pixel The value of the restored pixel according to the offset value contains the stage in which: - in case the offset values contain offset values corresponding to the edge classes allocated to the current type of offset�

Claims (15)

1. Способ декодирования видео, содержащий этапы, на которых:1. A method of decoding a video, comprising stages in which: - синтаксически анализируют информацию объединения смещений, указывающую то, являются или нет параметры смещения текущего блока и, по меньшей мере, одного соседнего блока из числа блоков видео идентичными друг другу, из принимаемого потока битов;- syntactically analyze the information of the combination of offsets, indicating whether or not the offset parameters of the current block and at least one neighboring block from among the video blocks are identical to each other, from the received bit stream; - восстанавливают тип смещения и значения смещения из числа параметров смещения текущего блока на основе информации объединения смещений;- restore the type of offset and the offset value from the number of offset parameters of the current block based on the information of the union of the offsets; - определяют класс края или полосу пикселных значений восстановленного пиксела текущего блока на основе типа края или типа полосы пикселных значений текущего блока, указывающего тип смещения; и- determine the edge class or strip of pixel values of the restored pixel of the current block based on the type of edge or type of strip of pixel values of the current block indicating the type of offset; and - определяют значение смещения, соответствующее классу края или полосе пикселных значений восстановленного пиксела, из значений смещения и регулируют пикселное значение восстановленного пиксела согласно значению смещения.- determining the offset value corresponding to the edge class or strip of pixel values of the restored pixel from the offset values and adjusting the pixel value of the restored pixel according to the offset value. 2. Способ декодирования видео по п.1, в котором определение класса края или полосы пикселных значений восстановленного пиксела содержит этап, на котором:2. The video decoding method according to claim 1, wherein determining the class of the edge or strip of pixel values of the reconstructed pixel comprises the step of: - в случае, если тип смещения текущего блока представляет собой тип края, сравнивают пикселные значения текущего восстановленного пиксела и соседних пикселов относительно текущего восстановленного пиксела, расположенного согласно типу края и размеру края, и определяют класс края, указывающий то, является или нет текущий восстановленный пиксел краевым пикселом,- if the offset type of the current block is an edge type, compare the pixel values of the current restored pixel and neighboring pixels relative to the current restored pixel located according to the edge type and edge size, and determine the edge class indicating whether or not the current restored pixel edge pixel - при этом регулирование пикселного значения восстановленного пиксела согласно значению смещения содержит этап, на котором:- wherein adjusting the pixel value of the reconstructed pixel according to the offset value comprises the step of: - в случае, если значения смещения содержат значения смещения, соответствующие классам краев, выделяемым текущему типу смещения, определяют значение смещения, соответствующее классу края текущего восстановленного пиксела, из значений смещения.- in the event that the offset values contain offset values corresponding to the edge classes allocated to the current offset type, the offset value corresponding to the edge class of the current restored pixel is determined from the offset values. 3. Способ декодирования видео по п.1, в котором определение класса края или полосы пикселных значений восстановленного пиксела содержит этап, на котором:3. The video decoding method according to claim 1, wherein determining the class of the edge or strip of pixel values of the reconstructed pixel comprises the step of: - в случае, если тип смещения текущего блока представляет собой тип полосы пикселных значений, определяют полосу пикселных значений, указывающую диапазон пикселных значений, которому принадлежит пикселное значение текущего восстановленного пиксела, из множества полос,- if the offset type of the current block is a type of strip of pixel values, determine the strip of pixel values indicating the range of pixel values to which the pixel value of the current restored pixel belongs, from the plurality of bands, - при этом регулирование пикселного значения восстановленного пиксела согласно значению смещения содержит этап, на котором:- wherein adjusting the pixel value of the reconstructed pixel according to the offset value comprises the step of: - в случае, если значения смещения содержат значения смещения, соответствующие полосам пикселных значений, выделяемым текущему типу смещения, определяют значение смещения, соответствующее полосе пикселных значений текущего восстановленного пиксела, из значений смещения.- in the event that the offset values contain offset values corresponding to the stripes of pixel values allocated to the current type of offset, determine the offset value corresponding to the strip of pixel values of the current restored pixel from the offset values. 4. Способ декодирования видео по п.1, в котором восстановление типа смещения и значений смещения содержит этап, на котором:4. The video decoding method according to claim 1, in which the recovery of the offset type and offset values comprises the step of: - если, по меньшей мере, один параметр смещения левого блока и верхнего блока относительно текущего блока является идентичным параметру смещения текущего блока на основе информации объединения смещений, восстанавливают параметр смещения текущего блока как идентичный, по меньшей мере, одному параметру смещения левого блока и верхнего блока относительно текущего блока.- if at least one offset parameter of the left block and the upper block relative to the current block is identical to the offset parameter of the current block based on the merge information of the offsets, restore the offset parameter of the current block as identical to at least one offset parameter of the left block and the upper block relative to the current block. 5. Способ декодирования видео по п.1, в котором восстановление типа смещения и значений смещения содержит этап, на котором:5. The video decoding method according to claim 1, in which the recovery of the type of offset and offset values comprises the step of: - если, по меньшей мере, один параметр смещения левого блока и верхнего блока относительно текущего блока отличается от параметра смещения текущего блока на основе информации объединения смещений, синтаксически анализируют и восстанавливают параметр смещения текущего блока из принимаемого потока битов.- if at least one offset parameter of the left block and the upper block relative to the current block is different from the offset parameter of the current block based on the merge information of the offsets, the offset parameter of the current block is syntactically analyzed and restored from the received bit stream. 6. Способ декодирования видео по п.1, в котором восстановление типа смещения и значений смещения содержит этап, на котором:6. The method of decoding a video according to claim 1, in which the recovery of the type of offset and offset values comprises the step of: - выполняют прогнозирование и восстановление для параметров смещения, по меньшей мере, одного цветового компонента из компонента сигнала яркости и компонентов сигнала цветности текущего блока посредством обращения к параметрам смещения друг друга из параметров смещения.- perform prediction and recovery for the offset parameters of at least one color component from the luminance signal component and the color signal components of the current block by referring to each other's offset parameters from the offset parameters. 7. Способ декодирования видео по п.1, в котором значение смещения является средним значений разностей между восстановленными пикселами и исходными пикселами, включенными в идентичный класс края или идентичную полосу пикселных значений.7. The video decoding method according to claim 1, in which the offset value is the average of the differences between the restored pixels and the original pixels included in an identical edge class or an identical strip of pixel values. 8. Способ кодирования видео, содержащий этапы, на которых:8. A method for encoding a video, comprising the steps of: - определяют класс края согласно типу края текущего блока из числа блоков видео или полосу пикселных значений согласно его типу полосы пикселных значений;- determine the class of the edge according to the type of edge of the current block from the number of video blocks or a strip of pixel values according to its type of strip of pixel values; - определяют значение смещения, соответствующее классу края или полосе пикселных значений, посредством использования значений разностей между восстановленными пикселами и исходными пикселами, включенными в класс края или полосу пикселных значений; и- determining the offset value corresponding to the edge class or strip of pixel values by using the difference values between the restored pixels and the original pixels included in the edge class or strip of pixel values; and - когда параметр смещения каждого блока содержит тип смещения, указывающий тип края или тип полосы пикселных значений, и смещение, соответствующее классу края или полосе пикселных значений, на основе идентификационных данных между параметрами смещения текущего блока и, по меньшей мере, одного соседнего блока, кодируют информацию объединения смещений текущего блока, указывающую то, кодируется или нет параметр смещения текущего блока.- when the offset parameter of each block contains an offset type indicating the type of edge or type of strip of pixel values, and the offset corresponding to the edge class or strip of pixel values, based on the identification data between the offset parameters of the current block and at least one neighboring block, encode information about combining the offsets of the current block, indicating whether or not the offset parameter of the current block is encoded. 9. Способ кодирования видео по п.8, в котором определение класса края и полосы пикселных значений содержит этап, на котором:9. The video encoding method of claim 8, in which the definition of the class of the edge and strip of pixel values contains a stage in which: - в случае, если смещение текущего блока определяется согласно типу края, сравнивают пикселные значения текущего восстановленного пиксела и соседних пикселов относительно текущего восстановленного пиксела, расположенного согласно типу края и размеру края, и определяют класс края, указывающий то, является или нет текущий восстановленный пиксел краевым пикселом.- if the offset of the current block is determined according to the type of edge, compare the pixel values of the current restored pixel and neighboring pixels relative to the current restored pixel located according to the type of edge and size of the edge, and determine the edge class indicating whether or not the current restored pixel is edge pixel. 10. Способ кодирования видео по п.8, в котором определение класса края и полосы пикселных значений содержит этап, на котором:10. The method of encoding a video of claim 8, in which the definition of the class of the edge and strip of pixel values contains a stage in which: - в случае, если смещение текущего блока определяется согласно типам полос пикселных значений восстановленных пикселов, определяют полосу пикселных значений, указывающую диапазон пикселных значений, которому принадлежит пикселное значение текущего восстановленного пиксела, из множества полос.- if the offset of the current block is determined according to the types of pixel value stripes of the restored pixels, a pixel value strip indicating a range of pixel values to which the pixel value of the current restored pixel belongs to from the plurality of bands is determined. 11. Способ кодирования видео по п.8, в котором кодирование информации объединения смещений текущего блока содержит этап, на котором:11. The video encoding method according to claim 8, in which the encoding of the information combining the offsets of the current block contains a stage in which: - если, по меньшей мере, один параметр смещения левого блока и верхнего блока относительно текущего блока является идентичным параметру смещения текущего блока, кодируют информацию объединения смещений за исключением параметра смещения текущего блока.- if at least one offset parameter of the left block and the upper block relative to the current block is identical to the offset parameter of the current block, the combination information of the offsets is encoded with the exception of the offset parameter of the current block. 12. Способ кодирования видео по п.8, в котором определение значения смещения, соответствующего классу края или полосе пикселных значений, содержит этап, на котором:12. The video encoding method of claim 8, in which determining the offset value corresponding to the edge class or strip of pixel values, comprises the step of: - определяют значение смещения, которое является средним значений разностей между восстановленными пикселами и исходными пикселами, включенными в идентичный класс края или идентичную полосу пикселных значений.- determine the offset value, which is the average of the differences between the restored pixels and the original pixels included in an identical edge class or an identical strip of pixel values. 13. Устройство декодирования видео, содержащее:13. A video decoding device, comprising: - модуль синтаксического анализа параметров смещения для синтаксического анализа информации объединения смещений, указывающей то, являются или нет параметры смещения текущего блока и, по меньшей мере, одного соседнего блока из числа блоков видео идентичными друг другу, из принимаемого потока битов, восстановления типа смещения и значений смещения из числа параметров смещения текущего блока на основе информации объединения смещений; и- a module for parsing bias parameters for parsing information of combining biases, indicating whether or not the bias parameters of the current block and at least one neighboring block from among the video blocks are identical to each other, from the received bit stream, recovering the bias type and values offsets from the number of offset parameters of the current block based on the offset combining information; and - модуль регулирования смещения для определения класса края или полосы пикселных значений восстановленного пиксела на основе типа края или типа полосы пикселных значений текущего блока, указывающего тип смещения, и определения значения смещения, соответствующего классу края или полосе пикселных значений восстановленного пиксела, из значений смещения и регулирование пикселного значения восстановленного пиксела согласно значению смещения.- an offset adjustment module for determining the edge class or strip of pixel values of the restored pixel based on the edge type or strip type of the pixel values of the current block indicating the offset type, and determining the offset value corresponding to the edge class or pixel strip of the restored pixel from the offset values and adjusting the pixel value of the reconstructed pixel according to the offset value. 14. Устройство кодирования видео, содержащее:14. A video encoding device, comprising: - модуль определения смещения для определения класса края согласно типу края текущего блока из числа блоков видео или полосы пикселных значений согласно его типу полосы пикселных значений и определения значения смещения, соответствующего классу края или полосе пикселных значений, посредством использования значений разностей между восстановленными пикселами и исходными пикселами, включенными в класс края или полосу пикселных значений; и- an offset determination module for determining the edge class according to the edge type of the current block from the number of video blocks or the pixel strip according to its type of pixel strip and determining the offset value corresponding to the edge class or pixel strip by using the difference values between the restored pixels and the original pixels included in the edge class or pixel value bar; and - модуль кодирования параметров смещения для, когда параметр смещения каждого блока содержит тип смещения, указывающий тип края или тип полосы пикселных значений, и смещение, соответствующее классу края или полосе пикселных значений, на основе идентификационных данных между параметрами смещения текущего блока и, по меньшей мере, одного соседнего блока, кодирования информации объединения смещений текущего блока, указывающей то, кодируется или нет параметр смещения текущего блока.- an offset parameter encoding module for, when the offset parameter of each block contains an offset type indicating an edge type or a type of strip of pixel values, and an offset corresponding to an edge class or a strip of pixel values based on identification data between the offset parameters of the current block and at least , one adjacent block, encoding the information of combining the offsets of the current block, indicating whether the offset parameter of the current block is encoded or not. 15. Машиночитаемый носитель записи, имеющий записанную программу для осуществления способа по любому из пп.1 и 8. 15. Machine-readable recording medium having a recorded program for implementing the method according to any one of claims 1 and 8.
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